#include <MIDI.h>

int pp =0;
#define LED 13          // LED pin on Arduino board
 
// Settings for MIDI library v4.0 an upper
struct MySettings : public midi::DefaultSettings{
    static const bool UseRunningStatus = false; // Messes with my old equipment!
};

MIDI_CREATE_CUSTOM_INSTANCE(HardwareSerial, Serial, MIDI, MySettings);
// End settings MIDI &gt;= v4.0
 
void setup() {
  pinMode(LED, OUTPUT);
  MIDI.begin(4);                // Launch MIDI with default options
                                // input channel is set to 4
}
 
void loop() {
  for (pp=60;pp<=81;pp++){
    digitalWrite(LED,HIGH);     // Blink the LED
    MIDI.sendNoteOn(pp,127,1);  // Send a Note (pitch 42, velo 127 on channel 1)
    delay(80);      // Wait
    MIDI.sendNoteOff(pp,128,1);   // Stop the note
    digitalWrite(LED,LOW); 
    delay(50);      
  }
}